ENDLESS BELT FOR ELECTROPHOTOGRAPHIC DEVICE
An endless belt for an electrophotographic device having high degrees of flexibility and wear resistance in a surface portion of the elastic layer is provided. The endless belt for an electrophotographic device, includes a base layer, and an elastic layer which is formed on a surface of the base layer, by using a rubber composition including at least one rubber material and at least one inorganic filler in which the elastic layer has 40-75% by mass of a total organic component, and a product P of an indentation Young's modulus (MPa) α and a fracture strain (%) β that is within a range of 6000-50000.
1 . An endless belt for an electrophotographic device, comprising:
a base layer; and
an elastic layer formed on a surface of the base layer, by using a rubber composition including at least one rubber material and at least one inorganic filler,
wherein the elastic layer has 40-75% by mass of a total organic component, and a product P of an indentation Young's modulus (MPa) α and a fracture strain (%) β is within a range of 6000-50000.
2 . The endless belt according to claim 1 , wherein the indentation Young's modulus is within a range of 4-150 MPa.
3 . The endless belt according to claim 1 , wherein the fracture strain is within a range of 40-1500%.
4 . The endless belt according to claim 1 , wherein the at least one rubber material is selected from a group consisting of NBR, BR, SBR, IIR and CR.
5 . The endless belt according to claim 1 , wherein the rubber composition includes a resinous cross-linking agent.
6 . The endless belt according to claim 1 , wherein the at least one inorganic filler includes at least an inorganic fire-resistant agent.
7 . The endless belt according to claim 1 , wherein the elastic layer is formed by a dispenser coating method.
8 . The endless belt according to claim 1 , wherein the base layer is formed of one of a polyimide resin and a polyamideimide resin.